Multiple century calendars



INVENTOR ATTORNEY 3 Sheets-Sheet 1 Dec.

A. S. BURKERT MULTIPLE CENTURY CALENDARS III NOV.

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wk mm Nv mm Deno'res Leap Year.

In Leap Year, for Jan.

use July instead.

In Leap Year for Feb.

use Aug instead INVENTOR A.s. BURKERT, 7 BY r 1 ATTORNEY Oct. 5, 1965 s,BURKERT 3,209,478

MULTIPLE CENTURY CALENDARS Filed Feb. 4, 1963 F aw-# 5 Sheets-Sheet 3 6658 as e r 1 I J I2 1 /2 C 4 I: INVENTOR sa 56 A.S.BURKERT,

ATTORNEY United States Patent 3,209,478 MULTIPLE CENTURY CALENDARSArthur S. Burkert, 4436 17th St. N., Arlington, Va. Filed Feb. 4, 1963,Ser. No. 256,050 1 Claim. (Cl. 40109) The present invention relates toimprovements in century calendars, and more particularly to a calendarwhich is operative through one or more century periods.

One object is to provide a calendar which can be quickly and easily setto a particular year number in a single step operation without requiringvarious intermediate steps or different key numbers.

Another object is to provide a century calendar which is operative forall years and does not require separate or different settings for leapyears.

Another object is to provide a century calendar which when set for apredetermined year number will automatically show and indicate all ofthe years having identical week days of a month throughout a yearlyperiod.

Another object is to provide a calendar of the abovementioned type inwhich the series of year numbers are arranged in chronological orderthroughout one or more century periods, and are disposed in four columnswhich are clearly visible, and in which certain year numbers areprovided with indicating marks or dots to designate leap years so that asmall change in the calendar reading can be indicated for all of theleap year numbers.

Another object is to provide a calendar of the abovementioned type whichcan be easily set from one year number to the next by simply shiftingthe week day card so that arrows or marks thereon register with the yearnumbers progressively.

Another object is to provide a calendar of the abovementioned type inwhich a slide is provided having a series of week days arranged inmonthly groups, and to provide arrow markings or indicators for certainof said monthly groups of week days which when arranged opposite thecorrect year number will indicate and expose a twelve month calendargroup of week days through a series of openings having proper indicia torepresent the names of months arranged in chronological order.

Another object is to provide a calendar which is formed of a singlesheet of material which can be separated into two portions by means of aweakened or serrated line to provide a slide bearing the week days inmonthly groups which are adapted to be brought into registry withopenings in the other portion of said sheet.

Another object is to provide a calendar of the abovementioned type inwhich the detached portion of said sheet bearing the monthly groups ofweek days is provided with additional serrated or weakened lines alongopposed marginal edges to permit removal of material in these areas andform oppositely extending tongues or projections which are adapted to beslidably received in slotted openings in the major portion of thecalendar sheet, the corner edges of said projections are arranged toform stops engageable with the ends of the slots in the major calendarsheet portion.

Another object is to provide a calendar which is comparativelyeconomical and which can be printed in a single sheet bearingadvertising matter or the like, and which can be quickly assembled toform a perpetual calendar by separating the sheet along the weakenedzone to form major and minor calendar portions which are slidablyconnected so that the minor portion is movably mounted on the majorportion in back of a series of openings of rectilinear form to exposepredetermined week days of a particular preselected group of calendarmonths.

Other objects and advantages of the invention will 3,209,478 PatentedvOct. 5, 1965 become apparent during the course of the followingdescription of the accompanying drawings wherein:

FIGURE 1 is a top elevational view of a sheet blank used in forming thecalendar showing the manner in which the year numbers and day numbersare printed thereon and illustrating the punch out areas for the variousmonths of the year.

FIGURE 2 is an enlarged fragmentary top elevational vieW showing one endof the sheet blank and the manner in which the year numbers are printedthereon in four columns to run consecutively in a direction transverseof the sheet blank.

FIGURE 3 is an enlarged fragmentary top elevational view showing asection of the sheet blank of the calendar in the area of the upperright hand corner thereof.

FIGURE 4 is a fragmentary top elevational view of the calendar after thesheet blank has been separated along a transverse serrated weakened zonewith the slide portion of the blank slidably mounted in the upper ormajor portion of the blank.

FIGURE 5 is a vertical cross-sectional view taken on line 55 of FIGURE 4and looking in the direction of the arrows to illustrate the manner inwhich the oppositely extending projections are slidably received in apair of parallel slots in the upper or major portion of the sheet blank,and

FIGURE 6 is a top elevational view showing the calendar slide formedfrom the sheet blank after the corner portions have been removed bytearing or the like on weakened serrated line areas.

In the drawings, and more in detail, attention is first directed toFIGURE 1 wherein there is shown a sheet blank generally designated 5 andhaving upper and lower portions providing a major portion 6 and a slideportion 7. The blank 5 is serrated transversely as at 8 to form aweakened line to facilitate easy removal of the slide portion 7 from themajor portion 6.

The major calendar portion 6 is provided with a series of rectangularareas 9 which are defined by serrated and weakened tear lines 10 tofacilitate removal of the areas 9 by punching the same out with thefinger or a suitable blunt instrument. The rectangular areas 9 provideWindows or openings 12 and as shown in FIGURE 4 the windows 12 arearranged in horizontal rows which are offset from one another verticallyand are also offset in a lateral direction. For instance, the tophorizontal row of openings 12 are oifset progressively in a verticaldirection in a similar manner to the second, third and fourth horizontalrows, while the openings 12 in the vertical rows are oflset from oneanother.

The window openings 12 are provided with marginal legends 14 arrangedeither above or along the side of the opening to designate year monthsthrough a twelve month yearly period.

Printed or otherwise marked in the area of the sheet 6 above the windowopenings 12 is a series of year dates 16 which range from 1900 throughthe year 2000, and the year dates 16 are arranged in four columnsextending chronologically and transversely of the sheet 6 from the leftto the right side thereof. The year dates 16 are arranged in groups offour or more depending upon the spacing of the window openings 12.

Marked or otherwise printed above the window openings 12 is a series oflegends 18 denoting days of the week from Sunday to Saturday. Thelegends 18 may be letters designating the week day.

Also marked or printed in the upper right hand corner of the sheet 6 asshown in FIGURE 3 is a series of legends 20 indicating year dates whichmay be substituted or used in lieu of the year dates 16 for the previouscentury dating from 1800 to 1900. For instance, should it be desired toset up a calendar for a particular year in the 1800 to 1899 periodcertain of the year dates 16 can be used for the particular preselectedyear as indicated by the numerals 20 in the chart shown in FIGURE 3 andprinted or otherwise marked on the upper right hand corner of the sheet.

The sheet 6 is provided with a pair of weakened or serrated lines 22 and24 which are arranged in spaced relation and extend transversely of thesheet as shown in FIGURE 1. After the lower section 7 of the sheet hasbeen separated from the upper section along the weakened or serratedline 8, the slide section 7 is adapted to be used as a slide for thecalendar. As shown in FIGURE 1, the section 7 is provided with a seriesof upper and lower horizontal serrations 26 and 28 having verticalweakened lines or serrated portions 30 and 32 to facilitate removal ofmarginal corner portions 34 and 36 respectively on the left hand side ofthe slide section. Similarly, the right hand side of the slide sectionis provided with horizontal parallel weakened line areas 38 and 40having vertical weakened lines 42 and 44 at the terminal ends thereof.Another weakened vertical serrated line 46 is provided and extendsvertically between the serrated lines 38 and 40 to permit removal of themarginal portions of the slide section 7 adjacent the right hand end.After the marginal sections have been removed the slide section 7 isformed with oppositely directed longitudinally extending tabs 50 and 52which terminate at points 54 and 56 respectively to provide limit stopsto limit the sliding movement of the slide section 7 when the same isassembled with the major sheet section 6. The slide section 7 has itsupper marginal edge 50 or projection marked or printed to provide aseries of spaced indicating marks 58 in the form of an arrow or similarindicator, and the indicating marks 58 are arranged to register with theyear numbers 16 in the upper portion of the major sheet section 6 whenthe slide is assembled.

The slide section 7 is provided with a series of week day numbers 60which are arranged as shown in FIGURE 1 and are stepped progressivelyupwardly and to the right in three horizontal rows, or rows which extendslightly diagonal with respect to the rectilinear edges of the sheetsection 7. To assemble the slide section 7 after the marginal portionshave been removed, the serrated or weakened lines 22 and 24 are openedby a knife or the like to form slots 62 and 64. The upper slot 62 is ofa length slightly greater than the length of the upper projection 50,and said projection 50 is received in said slot so that the slidesection 7 bearing the day numerals 60 is arranged behind the windowopenings 12. The lower projection 52 is similarly received in the slot64 and the projection 52 is of a length slightly less than the length ofthe slot 64. Thus, the end edges 54 and 56 of the opposed projections 50and 52 respectively form stops which engage the ends 66 and 68 of theslots 62 and 64 respectively. As shown in FIGURES 4 and the slidesection 7 bearing the day numerals is mounted for transverse slidingmovement so that the day numerals will appear in the openings 12 andform a calendar with the day numerals in registry with the day of theweek legends 18. By moving the slide section 7 toward the right or leftuntil one of the arrows 58 registers with a selected year number in oneof the four columns of year numbers 16 the correct day numbers willappear in the openings 12 beneath the correct week day legends 18.

In the event that the selected year is a leap year, the operator mayobserve the lines 70 and 72 which indicate that the months of July andAugust are to be substituted for the months of January and February.Suitable markings and indicia can be printed or otherwise marked on thesection 6 to properly indicate alternative use in leap year periods. Theseries of year numbers 16 may be pro vided with marks or indications 74opposite a leap year number to indicate to the user the different leapyears so that the substitution of the July and August month readings canbe used in place of the January and February readings.

In FIGURE 1 the year numbers 16 have been indicated by dash lines, butare shown in chronological order in FIGURE 2 for the purpose ofclarification. Similarly, the day numbers 60 have been shown for themost part as dot and dash lines with the upper lines of each row markedto include actual week day numbers, and the lower row of each columnmarked to indicate the last week day of a month. In the interval betweenthe first and last week days dash marks have been used to indicate thelocation of the various numerals so arranged as to appear in theopenings 12 as week day numbers in proper vertical alignment with thenames of the week days marked as at 18 above each of the window openings12.

In operation, it is assumed that the section 7 has been slidably mountedin the major portion of the sheet 6 as previously described. To set upthe calendar for a particular year the slide 7 is moved transverselyuntil one of the arrows 58 registers with the preselected year number16. After the slide has thus been moved the correct week day numbergroups will appear in the window openings 12 in proper registry with theday of the week legend 18. The sheet blank 5 may be formed of relativelyheavy paper board such as card or bristle board of sufiicient stiffnessto sustain its shape when the slide is assembled and to prevent portionsof the sheet having slots from becoming mutilated. Obviously, relativelythin plastic material can be used in sheet form when constructing theblank 5, but it is preferred that the blank be formed of paper board asabove described in view of the fact that the same can be easily printedand marked with the proper day of the week and year numbers.

In view of the simplicity in construction of the calendar, the same canbe economically printed, and the weakened lines described therein can beeasily formed simultaneously with the printing and marking operation.

What I claim is:

In a multiple century calendar, a cardboard sheet having a series oftransversely arranged rows of year dates printed on the upper end ofsaid sheet, said sheet being rectangular with the rows of year datesextending parallel with one another and with one end of said sheet, aseries of rows of day numerals printed on the lower end of said sheetarranged in parallel relation with one another and the lower narrow edgeof said rectangular sheet, said sheet being provided with a series ofopenings each of which has printed thereabove month legends designatingthe successive months of a year and also having printed thereon alongthe upper edges of said openings abbreviations designating days of theweek, a weakened zone line arranged between said openings and the day ofthe month numerals printed on the lower end of said sheet extendingtransversely of said sheet and parallel to the lower short side of saidrectangular sheet, said weakened zone line forming a tear zone to permitthe lower portion of said sheet to be separated from the upper portion,additional weakened zone lines at the corner portions of the lowersection of said sheet adapted to be removed when the lower section hasbeen detached from the upper section, longitudinally extending tonguesformed on said lower section after the corner portions thereof have beentorn away to provide upper and lower parallel guide projections on saidlower removed section, said upper section being provided with parallellongitudinal slots extending above and below said series of openings topermit said guide projections to be inserted therein and slidablysupport the lower section of said sheet formerly the lower end thereofwhen the same has been removed and placed in back of said upper end ofsaid sheet, whereby slidable movement of said lower section will exposea series of day numerals for a complete month printed thereon in each ofsaid openings, the end edges of said tongues forming limit stopsengageable at the ends of said slots, and marker indicators printed onthe uppermost 5 6 guide projection in spaced apart relation to permitone 2,575,555 11/51 La Plante 40l09 of said marker indicators to bemoved into registry with 2,684,545 7/54 Talbot 40-109 a selected yeardate and expose a series of day of the 2,777,231 1/57 Bollin 40-126 Weeknumerals in each of said openings with the proper 2,814,139 11/57 Clare40109 days of the Week for an entire month aligned under the 5 3,103,0809/63 Desmond 4070 correct day of the month legends printed above eachFOREIGN PATENTS opening and corresponding to the days of the Week for almonths for said selected year. 106,681 6/17 Great Bmam References Citedby the Examiner 1O EUGENE R. CAPOZIO, Primary Examiner.

UNITED STATES PATENTS JEROME SCHNALL, Examiner.

1,368,257 2/21 Harvey 40-18

